A kip is 1,000 pound-force.
Kips to Femtonewtons Converter — kip to fN
Convert Kip (kip) to Femtonewton (fN) using the exact conversion factor (1 kip = 4.448222e+18 femtonewton). See the formula, worked examples, and conversion table.
Kips to Femtonewtons converter
Converter
Force Converter
Convert newtons, dynes, pound-force, kilogram-force, kips, and ounce-force.
Context values
Some unit families need one extra value for a physically accurate result.
Femtonewton is 1e-15 newton units.
Result = input x 4448.221615 / 1e-15.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kips to Femtonewtons
Kip and Femtonewton both measure force, and the conversion matters whenever an SI-trained engineer needs to compare notes with a US-trained one, or vice versa. Specifically: A kip is 1,000 pound-force, and femtonewton is 1e-15 newton units.
Formula
femtonewtons = kips × 4.448222e+18
This factor comes from each unit's defined relationship to the category's base unit: 1 kip equals 4448.22161526 base units, and 1 femtonewton equals 1e-15 base units, so dividing one by the other gives the direct kip-to-femtonewton factor of 4.448222e+18.
Simple example
1 kip × 4.448222e+18 = 4.448222e+18 fN
1 kip = 4.448222e+18 femtonewtons.
Real-world example
10 kip × 4.448222e+18 = 4.448222e+19 fN
10 kips = 4.448222e+19 femtonewtons.
Conversion table
| Kip (kip) | Femtonewton (fN) |
|---|---|
| 1 kip | 4.448222e+18 fN |
| 5 kip | 2.224111e+19 fN |
| 10 kip | 4.448222e+19 fN |
| 50 kip | 2.224111e+20 fN |
| 100 kip | 4.448222e+20 fN |
| 1,000 kip | 4.448222e+21 fN |
Reverse conversion: Femtonewton to Kip
4.448222e+18 fN × 2.248089e-19 = 1.000000086 kip
4.448222e+18 femtonewtons = 1.000000086 kips.
kips = femtonewtons × 2.248089e-19
For a page dedicated to this direction, see Femtonewton to Kip.
Understanding the Kip (kip)
A kip is 1,000 pound-force.
Understanding the Femtonewton (fN)
Femtonewton is 1e-15 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtonewtons are in 1 kip?
1 kip equals 4.448222e+18 femtonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert kip to femtonewton?
Multiply the kip value by 4.448222e+18. The converter above does this instantly to whatever precision you set.
How do I convert femtonewton back to kip?
Use the reverse factor: 1 femtonewton equals 2.248089e-19 kips. You can also use the swap control in the converter above to flip the direction instantly.
What is a kip?
Kip (kip) is a unit of force.
What is a femtonewton?
Femtonewton (fN) is a unit of force.
Is the kip to femtonewton conversion exact?
Yes. Both kip and femtonewton are defined by fixed standards rather than physical artifacts, so the factor of 4.448222e+18 used above is exact to as many digits as you choose to display.